118420807 has 2 divisors, whose sum is σ = 118420808. Its totient is φ = 118420806.

The previous prime is 118420741. The next prime is 118420823. The reversal of 118420807 is 708024811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118420807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118420867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59210403 + 59210404.

It is an arithmetic number, because the mean of its divisors is an integer number (59210404).

Almost surely, 2^118420807 is an apocalyptic number.

118420807 is a deficient number, since it is larger than the sum of its proper divisors (1).

118420807 is an equidigital number, since it uses as much as digits as its factorization.

118420807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 118420807 is about 10882.1324656521. The cubic root of 118420807 is about 491.0691730877.

The spelling of 118420807 in words is "one hundred eighteen million, four hundred twenty thousand, eight hundred seven".